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Fixed issue #2858: removed unneeded call to _mm_setzero_si128

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Sean McBride 2024-09-24 16:29:45 +00:00 committed by Charles Schlosser
parent 2a3465102a
commit b6b8b54e5e
1 changed files with 1 additions and 3 deletions
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4
Eigen/src/Core/arch/SSE/PacketMath.h
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@ -2279,8 +2279,6 @@ EIGEN_STRONG_INLINE __m128i half2floatsse(__m128i h) {
}
EIGEN_STRONG_INLINE __m128i float2half(__m128 f) {
__m128i o = _mm_setzero_si128();
// unsigned int sign_mask = 0x80000000u;
__m128i sign = _mm_set1_epi32(0x80000000u);
// unsigned int sign = f.u & sign_mask;
@ -2307,7 +2305,7 @@ EIGEN_STRONG_INLINE __m128i float2half(__m128 f) {
// f.f += denorm_magic.f;
f = _mm_add_ps(f, _mm_castsi128_ps(denorm_magic));
// f.u - denorm_magic.u
o = _mm_sub_epi32(_mm_castps_si128(f), denorm_magic);
__m128i o = _mm_sub_epi32(_mm_castps_si128(f), denorm_magic);
o = _mm_and_si128(o, subnorm_mask);
// Correct result for inf/nan/zero/subnormal, 0 otherwise
o = _mm_or_si128(o, naninf_value);